Get your green on, because St. Patrick's Day has arrived! While we're celebrating all things Irish, let's turn our attention towards one Marvel hero who called Ireland his home – Sean Cassidy, a.k.a. Banshee! This Irish mutant used his sonic scream powers as a member of the X-Men, and he used his NYPD and Interpol training to protect and guide mutant teens as the headmaster of the Massachusetts Academy. Here are some of Banshee's most defining moments!
Banshee first encountered the X-Men while under the influence of the evil Factor Three organization. The mind-controlled mutant assisted the group in their attempt to kidnap Professor X, but the X-Men's telepathic leader saved the day by using his powers to free Banshee of Factor Three's influence.
Many years later, Professor X asked Banshee to join the next generation of X-Men. Together with fellow new recruits Wolverine, Storm, Nightcrawler, Colossus, Thunderbird, and Sunfire, the all-new and all-different team of heroes rescued their predecessors from the mutant island Krakoa. The team's lineup changed immediately, as Sunfire realized he could not be a team player and Thunderbird met an early end on the next mission. Banshee became a key member of the pared down unit, and forged strong friendships with his teammates.
When the team went up against the power-mad Moses Magnum, only Banshee's sonic scream could counteract the energy released by an earthquake machine. Banshee pushed his sonic scream past its limit to contain the device, resulting in its explosion as well as the loss of Banshee's powers. Sean retired from the X-Men after the mission, and decided to stay on Muir Island with his scientist girlfriend, Moira MacTaggert.
Cassidy returned to the fold in a big way during the Phalanx Covenant. As one of the only X-Men left unassimilated by the techno-organic alien invaders, Banshee took control of the situation and rallied a ragtag group together to find and protect the next generation of mutants. When the dust settled, Banshee suddenly found himself in charge of these new mutants as the co-headmaster of the Massachusetts Academy. But Banshee soon faced his greatest challenge to date – running a school with the formerly evil Emma Frost!
After thirty years (our time, that is) of super heroics, Sean Cassidy's story came to a tragic end. Cyclops' long lost brother Vulcan, who Xavier had recruited onto a secret X-Men team that ended up being slaughtered by Krakoa, returned to Earth seeking revenge. Vulcan hijacked both the X-Men's Blackbird jet and a passenger plane carrying Banshee with the intention of causing a midair collision. To avert disaster, Sean flew in between the two planes and attempted to use his powers to redirect one of the planes off of the collision course. This heroic act became a heroic sacrifice, as Vulcan's control proved to be too absolute. Cyclops broke the news to Sean's daughter, Theresa, in X-FACTOR #7, and she eventually took on the super hero name Banshee to pay tribute to her father.
Check out more of Banshee's adventures on Marvel Unlimited!